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5776-50-1

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5776-50-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 5776-50-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 5,7,7 and 6 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 5776-50:
(6*5)+(5*7)+(4*7)+(3*6)+(2*5)+(1*0)=121
121 % 10 = 1
So 5776-50-1 is a valid CAS Registry Number.

5776-50-1Downstream Products

5776-50-1Relevant articles and documents

An extremely efficient and green method for the acylation of secondary alcohols, phenols and naphthols with a deep eutectic solvent as the catalyst

Nguyen, Hai Truong,Tran, Phuong Hoang

, p. 98365 - 98368 (2016/10/31)

The typical deep eutectic solvent [CholineCl][ZnCl2]3, easily prepared from choline chloride and zinc chloride, is green and useful for the acylation of secondary alcohols, phenols, and naphthols with acid anhydrides. Its efficiency allows the acylation of sterically hindered secondary alcohols and acid anhydrides to proceed in high yield under mild condition. The catalyst is cheap, easy to handle, conveniently synthesized in a single step, and recyclable for several times without significant loss of catalytic activity.

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